Question

Why should the light dependent reaction occur before the light independent reaction

Answer 1

Answer:

the light dependent reaction use the light energy to make two molecules needed for the next stage of photosynthesis the energy stored molecules ATP and reduced electron carrier NADPH. in plant the light reaction take place in the thylakoid membranes of the organelles called chloroplast and light reaction takes place first because it needs energy

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Answer 2

Answer:

Explanation: because the raw material ATP and NDPH  that is needed for dark reaction to fix CO2 for the formation of sugar molecule is formed during light reaction.